is_a (PHP 4 >= 4.2.0) is_a --
Returns TRUE if the object is of this class or has this class as
one of its parents
Descriptionbool is_a ( object object, string class_name)
This function returns TRUE if the object is of this class or
has this class as one of its parents, FALSE otherwise.
See also get_class(),
get_parent_class(), and
is_subclass_of().
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